Donlock

Donlock: noun. Have you ever wondered what donkeys open? Well, unlike monkeys, who have opposable thumbs and are therefore capable of opening most of the things that humans can open, donkeys have no such thing and so their list of things they could open is considerably smaller. This is why the donkey community decided to start manufacturing donlocks to have the satisfaction of being able to open things others can't open. It is, however, quite a mystery what donlocks actually are as the donkeys quite shrewdly decided to keep all of the information about them to themselves so as to prevent those meddling humans from finding out how it's done.